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PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019最新文献

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Ti3Ni4 precipitation in heat-treated nanocrytalline Ti – 50.9 at. % Ni alloy 热处理纳米晶Ti - 50.9 at中Ti3Ni4析出。% Ni合金
S. Girsova, T. Poletika
The structure of a nanocrystalline Ti–50.9 at. % Ni alloy with mixed subgrain/nanograin structure is investigated by transmission electron microscopy after annealing at temperature 400°C. The size, morphology and distribution of Ti3Ni4 particles formed in the process of the decomposition of a TiNi B2 solid solution are investigated. It is shown that the Ti3Ni4 particles precipitate in the substructure in the low-angle boundaries regions. The precipitation of coherent particles in subgrains is possible with the latter sizes less than 100 nm. At the same time, precipitations of Ti3Ni4 particles are not observed inside the nanograins.The structure of a nanocrystalline Ti–50.9 at. % Ni alloy with mixed subgrain/nanograin structure is investigated by transmission electron microscopy after annealing at temperature 400°C. The size, morphology and distribution of Ti3Ni4 particles formed in the process of the decomposition of a TiNi B2 solid solution are investigated. It is shown that the Ti3Ni4 particles precipitate in the substructure in the low-angle boundaries regions. The precipitation of coherent particles in subgrains is possible with the latter sizes less than 100 nm. At the same time, precipitations of Ti3Ni4 particles are not observed inside the nanograins.
纳米晶Ti-50.9 at的结构。在400℃退火后,用透射电镜研究了具有亚晶/纳米晶混合结构的% Ni合金。研究了Ti3Ni4固溶体在分解过程中形成的颗粒的大小、形态和分布。结果表明,Ti3Ni4颗粒在低角边界区域的亚结构中析出。当亚晶粒尺寸小于100 nm时,亚晶粒中有可能析出相干粒子。同时,纳米颗粒内部未观察到Ti3Ni4颗粒的析出。纳米晶Ti-50.9 at的结构。在400℃退火后,用透射电镜研究了具有亚晶/纳米晶混合结构的% Ni合金。研究了Ti3Ni4固溶体在分解过程中形成的颗粒的大小、形态和分布。结果表明,Ti3Ni4颗粒在低角边界区域的亚结构中析出。当亚晶粒尺寸小于100 nm时,亚晶粒中有可能析出相干粒子。同时,纳米颗粒内部未观察到Ti3Ni4颗粒的析出。
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引用次数: 0
The effect of load during frictional treatment with a DBN indenter on the surface finish of the NiCrBSi–Cr3C2 laser clad coating DBN压头摩擦处理过程中载荷对NiCrBSi-Cr3C2激光熔覆层表面光洁度的影响
N. Soboleva, A. Makarov, P. Skorynina, E. Nikolaeva, I. Malygina
The authors consider the hardness and surface finish of the composite NiCrBSi–Cr3C2 laser clad coating after frictional treatment with a dense cubic boron nitride (DBN) indenter in air at loads on the indenter of 350, 500 and 700 N in comparison with the surface characteristics after grinding. Frictional treatment in all cases leads to surface hardening. Frictional treatment at loads of 350–500 N ensures the formation of surfaces with the lowest roughness parameters and contributes to the preservation on the surface of large hard chromium carbides, while frictional treatment at a load of 700 N causes the destruction of Cr3C2 carbides on the surface of the coating.The authors consider the hardness and surface finish of the composite NiCrBSi–Cr3C2 laser clad coating after frictional treatment with a dense cubic boron nitride (DBN) indenter in air at loads on the indenter of 350, 500 and 700 N in comparison with the surface characteristics after grinding. Frictional treatment in all cases leads to surface hardening. Frictional treatment at loads of 350–500 N ensures the formation of surfaces with the lowest roughness parameters and contributes to the preservation on the surface of large hard chromium carbides, while frictional treatment at a load of 700 N causes the destruction of Cr3C2 carbides on the surface of the coating.
研究了高密度立方氮化硼压头在空气中摩擦处理后NiCrBSi-Cr3C2复合激光熔覆涂层在350、500和700 N压头载荷下的硬度和表面光洁度,并与磨削后的表面特性进行了比较。摩擦处理在所有情况下都会导致表面硬化。350-500 N的摩擦处理能保证表面粗糙度参数最低,有利于大的硬质碳化物表面的保存,而700 N的摩擦处理则会破坏涂层表面的Cr3C2碳化物。研究了高密度立方氮化硼压头在空气中摩擦处理后NiCrBSi-Cr3C2复合激光熔覆涂层在350、500和700 N压头载荷下的硬度和表面光洁度,并与磨削后的表面特性进行了比较。摩擦处理在所有情况下都会导致表面硬化。350-500 N的摩擦处理能保证表面粗糙度参数最低,有利于大的硬质碳化物表面的保存,而700 N的摩擦处理则会破坏涂层表面的Cr3C2碳化物。
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引用次数: 1
Content optimization of polyphenylene sulfide composites filled with carbon fibers of different size 不同尺寸碳纤维填充聚苯硫醚复合材料的含量优化
N. Grishaeva, S. Bochkareva, S. Panin, Le Thi My Hiep, B. Lyukshin, I. Panov, Nguen Duc Ahn
The chemical content of polyphenylene sulfide (PPS) based composite with specified physical–mechanical properties is determined in the study with the use of experimental data on the dependence of effective properties (volumetric wear, elastic modulus, elongation at break, etc.) versus the values of control parameters. The latter are degree of filling with (i) Short Carbon Fibers (SCF) of ∼70 µm long and (ii) Chopped Carbon Fibers (CCF) ∼2 mm long. After the required number of experimental reference points has been determined the technique for data supplementation up to a regular numerical array with the use of linear interpolation is employed. The obtained dependences of the effective properties versus the control parameter values are constructed in the form of surfaces and corresponding isolines. At the contour plots, a region with the required effective properties is then highlighted. Since the regions overlap each other, their intersection determines the allowable control parameters range that impart the required values to the effective properties. The possibility to design filled polymer materials with a complex of predefined strain-strength and tribological properties is demonstrated. The experimental results are used to gain the reference points in contrast to the previously used approach when a set of computational experiment data were employed. On the one hand, the combination of a full-scale laboratory and computational experiments makes the process of modeling and design materials more evident, clear and reasonable from a physical point of view. On the other hand, it allows to interpret the results as more reliable, as well as less time and material consuming.The chemical content of polyphenylene sulfide (PPS) based composite with specified physical–mechanical properties is determined in the study with the use of experimental data on the dependence of effective properties (volumetric wear, elastic modulus, elongation at break, etc.) versus the values of control parameters. The latter are degree of filling with (i) Short Carbon Fibers (SCF) of ∼70 µm long and (ii) Chopped Carbon Fibers (CCF) ∼2 mm long. After the required number of experimental reference points has been determined the technique for data supplementation up to a regular numerical array with the use of linear interpolation is employed. The obtained dependences of the effective properties versus the control parameter values are constructed in the form of surfaces and corresponding isolines. At the contour plots, a region with the required effective properties is then highlighted. Since the regions overlap each other, their intersection determines the allowable control parameters range that impart t...
在研究中,利用有效性能(体积磨损、弹性模量、断裂伸长率等)与控制参数值的依赖关系的实验数据,确定了具有特定物理力学性能的聚苯硫醚(PPS)基复合材料的化学含量。后者是指(i)短碳纤维(SCF) (~ 70 μ m长)和(ii)短切碳纤维(CCF) (~ 2mm长)的填充程度。在确定了所需的实验参考点数量之后,采用线性插值技术将数据补充到常规数值阵列。得到的有效性质对控制参数值的依赖关系以曲面和相应等值线的形式构造。在等高线图上,具有所需有效属性的区域将被突出显示。由于区域相互重叠,因此它们的交集决定了允许的控制参数范围,该范围将所需的值赋予有效属性。证明了设计具有预定义应变强度和摩擦学性能的复合填充聚合物材料的可能性。在采用一组计算实验数据的情况下,采用实验结果来获得参考点,而不是采用以往的方法。一方面,全尺寸实验室与计算实验相结合,使材料的建模和设计过程从物理角度上更加明显、清晰、合理。另一方面,它允许将结果解释为更可靠,以及更少的时间和材料消耗。在研究中,利用有效性能(体积磨损、弹性模量、断裂伸长率等)与控制参数值的依赖关系的实验数据,确定了具有特定物理力学性能的聚苯硫醚(PPS)基复合材料的化学含量。后者是指(i)短碳纤维(SCF) (~ 70 μ m长)和(ii)短切碳纤维(CCF) (~ 2mm长)的填充程度。在确定了所需的实验参考点数量之后,采用线性插值技术将数据补充到常规数值阵列。得到的有效性质对控制参数值的依赖关系以曲面和相应等值线的形式构造。在等高线图上,具有所需有效属性的区域将被突出显示。由于区域相互重叠,它们的交集决定了允许的控制参数范围。
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引用次数: 0
Particularities of ensuring the precision of filaments from 12H18N9T steel for additive manufacturing at their fabrication 12H18N9T钢增材制造细丝在制造过程中保证精度的特点
V. Yanpolskiy, A. Tyurin, A. Ruktuev
The issues of ensuring the accuracy of the filaments’ production for additive manufacturing using the electron beam energy at the stage of drawing of a workpiece made of 12H18N9T steel were considered. The reduction ratio varied in the range from e = 5 % to e = 67.5 %. Calculations showed that the dimensions of a workpiece for producing filaments with a diameter of O 1.3-0.09 mm was limited by O 4.27-0.17 mm. It was experimentally established that the diameter of a filament made of 12H18N9T steel after the last reducing step (1.3 mm) exceeded the allowable diameter (1.3−0,09 mm) and equaled to 1.37 mm. This deviation is probably induced by elasto-plastic strains occurring in the wire in the drawing process. To provide the required accuracy of the filaments with a diameter of O 1.3-0.09 obtained by drawing of 12H18N9T steel, it was recommended to grin the diameter of a die taking into account the magnitude of the elastic deformations, i.e. provide the diameter 0.05 mm smaller than required.
考虑了利用电子束能量在12H18N9T钢工件拉深阶段保证增材制造细丝生产精度的问题。还原率在e = 5% ~ e = 67.5%之间变化。计算表明,加工直径为1.3 ~ 0.09 mm的细丝时,工件的尺寸受限于0.4.27 ~ 0.17 mm。实验证实,12H18N9T钢经最后一步还原(1.3 mm)后的长丝直径超过允许直径(1.3 ~ 0.09 mm),达到1.37 mm。这种偏差可能是由拉丝过程中发生的弹塑性应变引起的。为了提供12H18N9T钢拉伸得到的直径为O 1.3-0.09的长丝所需的精度,建议根据弹性变形的大小来调整模具的直径,即提供比要求小0.05 mm的直径。
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引用次数: 0
Physical mesomechanics based interdisciplinary approach to the development of new methods for managing deformation process in fault zones 基于物理细观力学的跨学科方法来开发管理断裂带变形过程的新方法
V. Ruzhich, S. Psakhie, E. Shilko, E. Levina
In the paper, we discuss an approach to the development of methods for managing seismotectonic deformation processes in a multiscale block-structured Earth’s Crust from the viewpoint of the concept of physical mesomechanics. To date, there are no convincing results of many year researches in the fields of earthquake prediction and prevention of the dangerous man-caused and tectonic earthquakes. Therefore, in recent decades, there has been an increasingly active search for new ways to solve the problem of seismic safety. The aim of our research team’s activity is to provide a scientific rationale for a multidisciplinary approach to reduce the excess level of shear stresses in the fault zones to a safe background level by “spending” it on mechanical destruction and thermal processes in rocks during aseismic and co-seismic slip. The authors summarize the main results of modeling of geological and geophysical processes in the field of preparation of different scale seismogenic events, as well as the results of complex man-made impacts on segments of seismically active faults. The data obtained on segments of different scale faults within the Baikal rift zone and Mongolia confirm the possibility of implementing such an approach. For the practical implementation of such a project at highly stressed fault zones, it is necessary to carry out vertical, oblique and horizontal multilateral drilling with an injection of fluids of different compositions in combination with vibro-pulse stimulations to achieve safe relaxation of shear stresses.
本文从物理细观力学的观点出发,探讨了多尺度块体构造地壳地震构造变形过程管理方法的发展。迄今为止,在地震的预测和人为地震和构造地震的预防方面,多年的研究还没有令人信服的结果。因此,近几十年来,人们越来越积极地寻求解决地震安全问题的新途径。我们研究小组活动的目的是为多学科方法提供科学依据,通过“花费”在地震和同震滑动期间岩石的机械破坏和热过程上,将断裂带中多余的剪切应力水平降低到安全的背景水平。总结了不同尺度发震事件准备领域地质和地球物理过程模拟的主要成果,以及对地震活动断层段的复杂人为影响的主要成果。在贝加尔湖裂谷带和蒙古的不同规模断层段上获得的数据证实了实施这种方法的可能性。为了在高应力断裂带实际实施这一项目,有必要进行垂直、斜向和水平多边钻井,注入不同成分的流体,并结合振动脉冲刺激,以实现切应力的安全松弛。
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引用次数: 2
The evolution of the structure and properties of the composite electron-beam coatings of Ti-B-Fe system, modified by ZrO2 ultrafine powder ZrO2超细粉末改性Ti-B-Fe复合电子束涂层的结构与性能演变
K. Kolesnikova, N. Gal’chenko
The objective of the current study was to investigate the effect of ZrO2 ultrafine powder on the structure and properties of the composite coatings obtained from a mixture of thermo-reactive powders of the Ti-B-Fe system. The results of the metallographic and structural x-ray analysis, as well as tribological and hardness analyses showed that the introduction of zirconium dioxide alters the phase composition, reduces the hardness by a factor of 2-4, reduces the grain size, and increases the wear resistance of the coating formed in the process of electron-beam welding.The objective of the current study was to investigate the effect of ZrO2 ultrafine powder on the structure and properties of the composite coatings obtained from a mixture of thermo-reactive powders of the Ti-B-Fe system. The results of the metallographic and structural x-ray analysis, as well as tribological and hardness analyses showed that the introduction of zirconium dioxide alters the phase composition, reduces the hardness by a factor of 2-4, reduces the grain size, and increases the wear resistance of the coating formed in the process of electron-beam welding.
本研究的目的是研究ZrO2超细粉末对Ti-B-Fe体系热反应粉末混合物制备的复合涂层结构和性能的影响。金相、组织x射线分析、摩擦学和硬度分析结果表明,二氧化锆的引入改变了电子束焊接过程中形成的涂层的相组成,硬度降低了2-4倍,晶粒尺寸减小,耐磨性提高。本研究的目的是研究ZrO2超细粉末对Ti-B-Fe体系热反应粉末混合物制备的复合涂层结构和性能的影响。金相、组织x射线分析、摩擦学和硬度分析结果表明,二氧化锆的引入改变了电子束焊接过程中形成的涂层的相组成,硬度降低了2-4倍,晶粒尺寸减小,耐磨性提高。
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引用次数: 0
Features of plastic deformations of quartz-pyrite mineral associations of the Gabriel mine 加布里埃尔矿石英-黄铁矿矿物组合塑性变形特征
D. Lychagin, A. Bibko, L. Zyryanova
Rocks of the Gabriel mine (East Kazakhstan) belong to intensively modified milonites. These rocks in the Ore Altai are often ore-bearing for metals such as zinc, lead, copper and gold. Milonites are formed by imposing deformations on the original rocks. These rocks are interesting for large studies. Using the EBSD method allows us to investigate the deformation stage of mineral formation more detailed. In this work, we studied sections of quartz porphyroblasts with different volume fractions of pyrite. As a result, we determined the influence of the pyrite volume fraction on the degree of quartz deformation and the possible presence of water in the later stages of mineral.Rocks of the Gabriel mine (East Kazakhstan) belong to intensively modified milonites. These rocks in the Ore Altai are often ore-bearing for metals such as zinc, lead, copper and gold. Milonites are formed by imposing deformations on the original rocks. These rocks are interesting for large studies. Using the EBSD method allows us to investigate the deformation stage of mineral formation more detailed. In this work, we studied sections of quartz porphyroblasts with different volume fractions of pyrite. As a result, we determined the influence of the pyrite volume fraction on the degree of quartz deformation and the possible presence of water in the later stages of mineral.
东哈萨克斯坦加布里埃尔矿的岩石属于强变质的百万粒岩。阿尔泰矿中的这些岩石通常含有锌、铅、铜和金等金属。百龙岩是通过对原始岩石施加变形而形成的。这些岩石对大型研究来说很有趣。利用EBSD方法可以更详细地研究矿物形成的变形阶段。在这项工作中,我们研究了石英卟啉母细胞的不同体积分数的黄铁矿。由此,我们确定了黄铁矿体积分数对石英变形程度的影响以及矿物后期可能存在的水。东哈萨克斯坦加布里埃尔矿的岩石属于强变质的百万粒岩。阿尔泰矿中的这些岩石通常含有锌、铅、铜和金等金属。百龙岩是通过对原始岩石施加变形而形成的。这些岩石对大型研究来说很有趣。利用EBSD方法可以更详细地研究矿物形成的变形阶段。在这项工作中,我们研究了石英卟啉母细胞的不同体积分数的黄铁矿。由此,我们确定了黄铁矿体积分数对石英变形程度的影响以及矿物后期可能存在的水。
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引用次数: 2
X-ray diffraction method for quantitative estimation of elastic modulus in materials with gradient structure 梯度结构材料弹性模量的x射线衍射定量估计方法
M. Ostapenko, L. Meisner
The efficiency of X-ray diffraction (XRD) method for quantitative estimation of elastic modulus in materials with gradient structure have been demonstrated in the paper. This method was used to calculate the elastic modulus for NiTi samples irradiated at a beam energy E= 15 J/cm2 and pulse duration τ = 150 µsx. It is determined that the compared values of XRD elastic modulus E(hkl, ψ) and elastic modulus En obtained for the same samples by nanoindentation are close.The efficiency of X-ray diffraction (XRD) method for quantitative estimation of elastic modulus in materials with gradient structure have been demonstrated in the paper. This method was used to calculate the elastic modulus for NiTi samples irradiated at a beam energy E= 15 J/cm2 and pulse duration τ = 150 µsx. It is determined that the compared values of XRD elastic modulus E(hkl, ψ) and elastic modulus En obtained for the same samples by nanoindentation are close.
本文论证了x射线衍射(XRD)方法定量估计梯度结构材料弹性模量的有效性。利用该方法计算了在光束能量E= 15 J/cm2和脉冲持续时间τ = 150µsx辐照下NiTi样品的弹性模量。结果表明,采用纳米压痕法得到的相同样品的XRD弹性模量E(hkl, ψ)与弹性模量En比较值接近。本文论证了x射线衍射(XRD)方法定量估计梯度结构材料弹性模量的有效性。利用该方法计算了在光束能量E= 15 J/cm2和脉冲持续时间τ = 150µsx辐照下NiTi样品的弹性模量。结果表明,采用纳米压痕法得到的相同样品的XRD弹性模量E(hkl, ψ)与弹性模量En比较值接近。
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引用次数: 0
Effect of heat treatment on structure and mechanical properties of 12Cr-3Co steel with low N and high B contents 热处理对低氮高硼12Cr-3Co钢组织和力学性能的影响
I. Nikitin, A. Fedoseeva, N. Dudova, R. Kaibyshev
The effect of heat treatment on the microstructure and mechanical properties of Febal-0.1 wt.%C-12Cr-3Co-2.5W-1Cu-VNbTaBN steel was investigated. After normalization in the range of 1050-1150°C, the martensitic structure was dominant; δ-ferrite content was about 10%. When the temperature of normalizing increased from 1050°C to 1150°C, the average size of prior austenite grains increased from 44 to 68 µm. After tempering at 750, 770 and 800°C, tempered martensitic lath structure with a high dislocation density within martensitic laths contained nanosized M23C6 carbides along the boundaries of prior austenite grains and laths and (Ta,Nb)X carbonitrides randomly distributed in the ferritic matrix. The average sizes of M23C6 carbides and (Ta,Nb)X carbonitrides were about 50 nm and 40 nm, respectively, regardless of tempering temperature. The M6C carbide particles were also observed along the boundaries of prior austenite grains and pockets as well as along the boundaries between δ-ferrite and martensite; their amount was negligible. When tempering temperature increased from 750 to 800°C, the particle density on the boundaries between δ- ferrite/martensite decreased from 3.8 to 0.2 µm-1. A relationship between the lath size (h) and the density of free dislocations (ρ) can be described as h = (5.41/√ρ) - 0.07. Increasing the tempering temperature to 800°C led to a decrease in the hardness up to ∼220 HB, yield stress and ultimate tensile stress up to 520 and 700 MPa, respectively.The effect of heat treatment on the microstructure and mechanical properties of Febal-0.1 wt.%C-12Cr-3Co-2.5W-1Cu-VNbTaBN steel was investigated. After normalization in the range of 1050-1150°C, the martensitic structure was dominant; δ-ferrite content was about 10%. When the temperature of normalizing increased from 1050°C to 1150°C, the average size of prior austenite grains increased from 44 to 68 µm. After tempering at 750, 770 and 800°C, tempered martensitic lath structure with a high dislocation density within martensitic laths contained nanosized M23C6 carbides along the boundaries of prior austenite grains and laths and (Ta,Nb)X carbonitrides randomly distributed in the ferritic matrix. The average sizes of M23C6 carbides and (Ta,Nb)X carbonitrides were about 50 nm and 40 nm, respectively, regardless of tempering temperature. The M6C carbide particles were also observed along the boundaries of prior austenite grains and pockets as well as along the boundaries between δ-ferrite and martensite; thei...
研究了热处理对Febal-0.1 wt.%C-12Cr-3Co-2.5W-1Cu-VNbTaBN钢组织和力学性能的影响。1050 ~ 1150℃归一化后,以马氏体组织为主;δ-铁氧体含量约为10%。当正火温度从1050℃升高到1150℃时,奥氏体晶粒的平均尺寸从44µm增加到68µm。在750、770和800℃回火后,回火后的马氏体板条组织中存在高位错密度的纳米级M23C6碳化物,晶粒和板条边界上分布有纳米级M23C6碳化物,铁素体基体中随机分布有(Ta,Nb)X碳氮化物。与回火温度无关,M23C6碳化物和(Ta,Nb)X碳氮化物的平均尺寸分别约为50 nm和40 nm。M6C碳化物颗粒沿奥氏体晶粒和袋状晶界以及δ-铁素体和马氏体晶界分布;它们的数量微不足道。当回火温度从750℃升高到800℃时,δ-铁素体/马氏体界面上的颗粒密度从3.8µm-1降低到0.2µm-1。板条尺寸(h)与自由位错密度(ρ)之间的关系可以描述为h =(5.41/√ρ) - 0.07。将回火温度提高到800℃,硬度降低到~ 220 HB,屈服应力和极限拉伸应力分别降低到520和700 MPa。研究了热处理对Febal-0.1 wt.%C-12Cr-3Co-2.5W-1Cu-VNbTaBN钢组织和力学性能的影响。1050 ~ 1150℃归一化后,以马氏体组织为主;δ-铁氧体含量约为10%。当正火温度从1050℃升高到1150℃时,奥氏体晶粒的平均尺寸从44µm增加到68µm。在750、770和800℃回火后,回火后的马氏体板条组织中存在高位错密度的纳米级M23C6碳化物,晶粒和板条边界上分布有纳米级M23C6碳化物,铁素体基体中随机分布有(Ta,Nb)X碳氮化物。与回火温度无关,M23C6碳化物和(Ta,Nb)X碳氮化物的平均尺寸分别约为50 nm和40 nm。M6C碳化物颗粒沿奥氏体晶粒和袋状晶界以及δ-铁素体和马氏体晶界分布;寡糖……
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引用次数: 0
Mechanisms of deformation of austenitic stainless steel at cold rolling 奥氏体不锈钢冷轧变形机理研究
N. Surikova, V. Panin, N. Narkevich, A. Gordienko, M. Volochaev
The structure, mechanical characteristics and mechanisms of plastic deformation of stainless austenitic steel 12Cr15Mn9NiCu after high-temperature cross and screw and cold longitudinal rolling are examined with the help of mechanical testing, X-ray diffraction and electron transmission microscopy. It is shown that deformation martensitic transformations are the main mechanisms of deformation at temperatures less than 20 °C. The modes of thermomechanical treatment, which allow to obtain a good combination of strength and plastic properties in steel have been found out.The structure, mechanical characteristics and mechanisms of plastic deformation of stainless austenitic steel 12Cr15Mn9NiCu after high-temperature cross and screw and cold longitudinal rolling are examined with the help of mechanical testing, X-ray diffraction and electron transmission microscopy. It is shown that deformation martensitic transformations are the main mechanisms of deformation at temperatures less than 20 °C. The modes of thermomechanical treatment, which allow to obtain a good combination of strength and plastic properties in steel have been found out.
采用力学性能测试、x射线衍射和电子透射电镜等手段,研究了12Cr15Mn9NiCu不锈钢经高温十字螺纹和冷纵轧后的组织、力学特征和塑性变形机理。结果表明,在温度低于20℃时,变形马氏体相变是合金变形的主要机制。找到了使钢的强度和塑性得到良好结合的热处理方法。采用力学性能测试、x射线衍射和电子透射电镜等手段,研究了12Cr15Mn9NiCu不锈钢经高温十字螺纹和冷纵轧后的组织、力学特征和塑性变形机理。结果表明,在温度低于20℃时,变形马氏体相变是合金变形的主要机制。找到了使钢的强度和塑性得到良好结合的热处理方法。
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引用次数: 0
期刊
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019
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